#!/bin/bash
#
# To test the release process, this script attempts to
# use Google cloudbuild configuration to create a release
# locally.
#
# Usage: from the repo root, enter:
#
#     module=kustomize
#     module=pluginator  # pick one
#     module=api
#     module=pseudo/k8s
#
#     ./releasing/localbuild.sh $module
#
#
# See https://cloud.google.com/cloud-build/docs/build-debug-locally
#
# At the time of writing,
#
#   https://pantheon.corp.google.com/cloud-build/triggers?project=kustomize-199618
#
# has a trigger such that whenever a git tag is
# applied to the kustomize repo, the cloud builder
# reads the repository-relative file
#
#   releasing/cloudbuild_${module}.yaml
#
# Inside this yaml file is a reference to the script
#
#   releasing/cloudbuild.sh
#
# which runs goreleaser from the proper directory, with the
# proper config.
#
# The script you are reading now does something
# analogous via docker tricks.

set -e

module=$1
cbname=$module
case "$module" in
  api)
  ;;
  kustomize)
  ;;
  pluginator)
  ;;
  pseudo/k8s)
    cbname=pseudok8s
  ;;
  *)
    echo "Don't recognize module=$module"
    exit 1
  ;;
esac

config=$(mktemp)
cp releasing/cloudbuild_${cbname}.yaml $config

# Delete the cloud-builders/git step, which isn't needed
# for a local run.
sed -i '2,3d'  $config

# Add the --snapshot flag to suppress the
# github release and leave the build output
# in the kustomize/dist directory.
sed -i 's|"\]$|", "--snapshot"]|' $config

echo "Executing cloud-build-local with:"
echo "========================="
cat $config
echo "========================="

cloud-build-local \
    --config=$config \
    --bind-mount-source \
    --dryrun=false \
    .

echo " "
echo "Result of local build:"
echo "##########################################"
tree ./$module/dist
echo "##########################################"